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Re: Other: foiled skeg/rudder blades?
By:Bris Paul
Date: 11/15/2011, 2:38 pm
In Response To: Other: foiled skeg/rudder blades? (dave g)

: I don't know what the difference is between a foiled blade or a
: regular blade or what a regular blade is in comparison. I don't
: know the advantage of one over the other. I would really like to
: know what this is all about so good thing I don't mind asking,
: does anyone have a link I could read into in order to catch up
: with my lingo and overall knowledge?

To give a practical demonstration of how much less drag a NACA foil shape has over a flat shape, I can refer you an expierence I had with one of my 23 ft racing Trailer Sailers I bought a few years ago.
The former owner/builder had done a great job on building the boat, but ran out of time when it got to the ballasted swing centreboard .
He just built a flat plywoood plate the correct thickness and profile but not aerofoiled , he just rounded the ends off.
When sailing ,we needed a rope to hold the board down there was so much drag on it.
I then aerofoiled it to a NACA shape, after that there was no need to hold it down at all with the rope and the boat speed picked up accordingly .
An aerfoiled rudder is much much more efficent as well.

Bris Paul

Messages In This Thread

Other: foiled skeg/rudder blades?
dave g -- 11/13/2011, 10:55 pm
Re: Other: foiled skeg/rudder blades?
Craig Robinson -- 11/14/2011, 12:08 am
Re: Other: foiled skeg/rudder blades?
Bill Hamm -- 11/14/2011, 1:30 am
Re: Other: foiled skeg/rudder blades?
risto -- 11/14/2011, 2:59 am
Re: Other: foiled skeg/rudder blades?
Reg Lake -- 11/14/2011, 3:02 am
Re: Other: foiled skeg/rudder blades?
Wayne One (wwfloyd) -- 11/14/2011, 4:11 am
Re: Other: foiled skeg/rudder blades?
Bill Hamm -- 11/15/2011, 2:41 am
Re: Other: foiled skeg/rudder blades?
Reg Lake -- 11/15/2011, 3:16 am
Re: Other: foiled skeg/rudder blades?
Bill Hamm -- 11/16/2011, 1:47 am
Re: Other: foiled skeg/rudder blades?
Bill Hamm -- 11/16/2011, 2:00 am
Re: Other: foiled skeg/rudder blades?
Bill Hamm -- 11/15/2011, 2:46 am
Re: Other: foiled skeg/rudder blades?
Mike Savage -- 11/15/2011, 4:50 pm
Re: Other: foiled skeg/rudder blades?
Bill Hamm -- 11/16/2011, 1:50 am
Re: Other: foiled skeg/rudder blades?
Mike Savage -- 11/17/2011, 6:18 am
Re: Other: foiled skeg/rudder blades?
Bill Hamm -- 11/19/2011, 4:22 am
Re: Other: foiled skeg/rudder blades?
Mike Savage -- 11/19/2011, 2:27 pm
Re: Other: foiled skeg/rudder blades?
dave g -- 11/15/2011, 8:41 pm
Re: Other: foiled skeg/rudder blades?
Bill Hamm -- 11/16/2011, 1:57 am
Re: Other: foiled skeg/rudder blades?
Etienne Muller -- 11/16/2011, 4:44 am
Re: Other: foiled skeg/rudder blades? *PIC*
Etienne Muller -- 11/14/2011, 4:16 am
Re: Other: foiled skeg/rudder blades?
dave g -- 11/14/2011, 9:34 pm
Re: Other: foiled skeg/rudder blades?
Bill Hamm -- 11/15/2011, 2:51 am
Re: Other: foiled skeg/rudder blades?
Cole Coon -- 11/16/2011, 6:42 pm
Re: Other: foiled skeg/rudder blades?
Bris Paul -- 11/15/2011, 2:38 pm
Re: Other: foiled skeg/rudder blades?
Reg Lake -- 11/16/2011, 4:05 am
Re: Other: foiled skeg/rudder blades?
Bris Paul -- 11/16/2011, 2:56 pm
Re: Other: foiled skeg/rudder blades?
Craig Robinson -- 11/17/2011, 9:15 pm
Re: Other: foiled skeg/rudder blades?
Bill Hamm -- 11/19/2011, 4:40 am
Re: Other: foiled skeg/rudder blades?
Bill Hamm -- 11/19/2011, 4:51 am
Re: Other: foiled skeg/rudder blades?
Bill Hamm -- 11/19/2011, 4:36 am